Three Vouchers & Cashback 2022

Updated September 27, 2022
Getting the best mobile, broadband and SIM plan for your home and handsets is easy with Three! Browse our Three vouchers and Three discount codes for extra savings.

20%
OFF
2 uses today

Student Discount: Up to 20% off reduced upfront fees, unlimited data and more

Take advantage of exclusive deals with the Three student discount - shop top phones at a reduced price, enjoy unlimited data for less, and more special perks.
20% Off
2 uses today

Student Discount: Up to 20% off reduced upfront fees, unlimited data and more

Take advantage of exclusive deals with the Three student discount - shop top phones at a reduced price, enjoy unlimited data for less, and more special perks.

£100
OFF
2 uses today

Friend Referral Deal: Up to £100 cash to share between you and a friend

Refer a friend to Three and get up to £100 cash to share with your bff! Grab a new phone, tablet, SIM or home broadband for less today!
£100 Off
2 uses today

Friend Referral Deal: Up to £100 cash to share between you and a friend

Refer a friend to Three and get up to £100 cash to share with your bff! Grab a new phone, tablet, SIM or home broadband for less today!

10%
OFF

Latest Three vouchers and deals for over 10% off here

If you are looking for new deals, look no further! Score over 10% off select deals for Three current and new customers today!
10% Off

Latest Three vouchers and deals for over 10% off here

If you are looking for new deals, look no further! Score over 10% off select deals for Three current and new customers today!

CASHBACK
8 uses today

£100 cashback when you switch to Three with this unlimited data plan

Cashback
8 uses today

£100 cashback when you switch to Three with this unlimited data plan

£3
OFF
1 use today

Existing Customer Offer: Plans for £3 off monthly (as low as £10/month)

Grab your new phone for less with this Three deal for existing customer!
£3 Off
1 use today

Existing Customer Offer: Plans for £3 off monthly (as low as £10/month)

Grab your new phone for less with this Three deal for existing customer!

50% OF
1 use today

50% off for the first 6 months of SIM plans

Switch to these SIM plans and score 50% off your first 6 months of service!
50% Of
1 use today

50% off for the first 6 months of SIM plans

Switch to these SIM plans and score 50% off your first 6 months of service!

EXTRA DATA
2 uses today

End of Summer Offer: Extra 10GB if data when you renew you this data boost deal

Extra Data
2 uses today

End of Summer Offer: Extra 10GB if data when you renew you this data boost deal

CASHBACK

Up £250 cashback on selected top brand phone plans

Grab select iPhones, Galaxy phones and more and score up to £250 in cashback at Three!
Cashback

Up £250 cashback on selected top brand phone plans

Grab select iPhones, Galaxy phones and more and score up to £250 in cashback at Three!

FREE
SHIPPING

Free next-day shipping on all your online orders

Get your phones, tablets, and laptops delivered the following business day with free next-day delivery on all online purchase from Three mobile.
Free Shipping

Free next-day shipping on all your online orders

Get your phones, tablets, and laptops delivered the following business day with free next-day delivery on all online purchase from Three mobile.

FREE
SERVICE

1 year of free Disney+ when you choose select mobile plans

Score 12 months of Disney+ at Three when you get select mobile devices!
Free Service

1 year of free Disney+ when you choose select mobile plans

Score 12 months of Disney+ at Three when you get select mobile devices!

TRADE IN

Up to £870 off when you trade in your old iPhone for the new iPhone 14

Trade In

Up to £870 off when you trade in your old iPhone for the new iPhone 14

50%
OFF

Up to 50% off select deals exclusively for current customers

50% Off

Up to 50% off select deals exclusively for current customers

£360
OFF

Up to £360 off over 24 months with this family plan

Enjoy up to £330 in savings over a 24-month SIM-only plan from Three, featuring 2 phone lines with unlimited data, text, and calls for only £22/mo during the first 6 months of your contract.
£360 Off

Up to £360 off over 24 months with this family plan

Enjoy up to £330 in savings over a 24-month SIM-only plan from Three, featuring 2 phone lines with unlimited data, text, and calls for only £22/mo during the first 6 months of your contract.

FROM
£30

Top Deals: Latest Apple, Samsung and Google phones for as low as £30/month

From £30

Top Deals: Latest Apple, Samsung and Google phones for as low as £30/month

£600
OFF

Up to £600 off when you trade in your old device here

Don't chuck your old devices away! Take advantage of this Three deal to get up to £600 off any new device when you recycle your old handsets, tablets, or smartwatches.
£600 Off

Up to £600 off when you trade in your old device here

Don't chuck your old devices away! Take advantage of this Three deal to get up to £600 off any new device when you recycle your old handsets, tablets, or smartwatches.

10%
OFF

Rewards Offer: Exclusive app deals for over 10% off plus other perks for members

Download the Three app today and sign up for Three+ rewards! Score extra perks available just for members.
10% Off

Rewards Offer: Exclusive app deals for over 10% off plus other perks for members

Download the Three app today and sign up for Three+ rewards! Score extra perks available just for members.

TOP UP

Top up, add-ons and more exclusive offers in the app

Top Up

Top up, add-ons and more exclusive offers in the app

50%
OFF

5G plans for 50% off monthly + worldwide roaming

Enjoy many perks with your 5G-ready SIM! Get personal hotspots, cheap roaming around the world and 50% off your first 6 months of plan!
50% Off

5G plans for 50% off monthly + worldwide roaming

Enjoy many perks with your 5G-ready SIM! Get personal hotspots, cheap roaming around the world and 50% off your first 6 months of plan!

FREE
SIM

Free SIM when you sign up for the Pay As You Go program

No need to pay more than you need. Get the Pay As You Go SIM at Three for free here and add your custom data pack on the app.
Free SIM

Free SIM when you sign up for the Pay As You Go program

No need to pay more than you need. Get the Pay As You Go SIM at Three for free here and add your custom data pack on the app.

FROM
£6

SIM Only plans for as low as £6 per month

From £6

SIM Only plans for as low as £6 per month

£1
OFF

Business Price Promise Deal: At least £1 off per month compared to competitors

Not just a price match! If you find a better deal for your business contract at other companies, Three will beat it by at least £1 a month!
£1 Off

Business Price Promise Deal: At least £1 off per month compared to competitors

Not just a price match! If you find a better deal for your business contract at other companies, Three will beat it by at least £1 a month!
Popular Expired Three Discount Codes
50% Off

Extra 50% off SIM Only plan with unlimited data fo the first 6 months

Save half price right now with this Three SIM Only offer!
50% Off

50% off this iPhone 13 Pro Screen Protector when you buy an Apple case using this Three discount code

For a limited time only purchase an iPhone Apple Case and save 50% off the 13 Pro InvisibleShield Glass Elite Screen Protector when you use this Three discount code at checkout.
£12 Off

£12 off the Samsung Galaxy S20 monthly plan (now £30)

Pick up the Samsung Galaxy S20 and save £12 with the 30GB monthly plan (which was £12).

Popular Three Voucher Codes

Vouchers and DealsValueDiscount TypeStatus
Three SIM-only deals for up to 20% off and unlimited data for existing customers10% OffOnline DealOngoing
Three Voucher Code: Up to £50 cashback on online phone offers£50Online VoucherExpired
Three 5G mobile plans for up to 10% off10% OffOnline DealOngoing
Top up online for 5% off with this free Three voucher code5% OffOnline VoucherExpired

Tons Of Easy Savings

Looking for an additional plan or device as an existing customer? They have plenty of awesome Three deals to help you out. Add an extra SIM or device to your existing account or complete a Three upgrade to a shiny new phone in just a few clicks by browsing their “Offers” page online. We’ll also post all of the best Three vouchers and upcoming Three sales right here so you don’t miss out!

If you’re a student on a tight budget, you’re in luck. With their exclusive Three discounts for students, you can get your next phone, SIM, or broadband purchase for less. Just enter your university email address to access a wide range of specials just for students. Whether you’re looking for a 1-month or 12-month SIM plan, they’re undoubtedly the best choice for you.

Downloading Discounts

With the Three app for iOS and Android, anything is possible. From tracking your latest bill and usage to completing your next Three top-up, in just a few taps, the whole world can be yours. Now you can manage your account on the move; some features include viewing your Pay As You Go credit balance, bill breakdowns, checking your upgrade eligibility, and you can even browse the latest Three UK deals to see what’s new. Plus, if you need support from the Three contact team, live chat is always available for your convenience from your device.

Easy Deliveries

They always offer free, next working day delivery on all new purchases when you join! Enjoy this offer on phones, tablets, and MiFi that are ordered before 4 PM for delivery to your billing address. If you upgraded your phone online or over the phone, your new device will be delivered on their chosen date, and you will be charged £4.99 on your next bill— make sure you use a Three discount code or one of our Three voucher codes to save on this fee! If you’re still unsure about making the switch, just read a Three network review to see why customers choose them as their #1 network provider.

Three Frequently Asked Questions


How do you get the best discount at Three?

The best discounts, deals, and voucher codes can always be found right here at Quidco! You can also browse their exclusive customer offers page, join their mailing list for news about upcoming sales, and choose one of their plan bundles to cut down the cost of your next device!


Does Three do a student discount?

You don't have to sacrifice great cell service when you're on a tight student budget! With a valid academic ID, you can enjoy six months of service at half-price, as well as a free explorer backpack and wireless headphones. Just head to their website for more information on how to save!